package com.shopping.product.config;

import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author Europa
 */
@EnableConfigurationProperties(CacheProperties.class)
@Configuration
@EnableCaching
public class MyCacheConfig {

    /**
     * Redis缓存配置
     * java序列化修改为json
     *
     * @return Redis Cache Configuration
     */
    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties) {
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
        config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));

        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        //存活时间
        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }
        //key前缀
        if (redisProperties.getKeyPrefix() != null) {
            config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        }
        //是否缓存null值
        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }
        //是否使用key前缀
        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }
        return config;
    }
}
